Description
Enjoy the flavors of summer with this Cheesy Garden Vegetable Summer Casserole! Loaded with fresh zucchini, yellow squash, sweet corn, juicy tomatoes, bell peppers, and plenty of melted cheese, this easy baked casserole is the perfect side dish or vegetarian dinner. Great for using garden-fresh vegetables, family dinners, potlucks, BBQs, and meal prep, this comforting recipe is packed with flavor and wholesome ingredients.
Ingredients
Scale
Vegetables
- 2 medium zucchini, sliced
- 2 medium yellow squash, sliced
- 1 red bell pepper, diced
- 1 cup sweet corn kernels
- 2 cups cherry tomatoes, halved
- 1 small onion, diced
- 3 cloves garlic, minced
Creamy Mixture
- 1 cup sour cream
- 2 large eggs
- 1 teaspoon Italian seasoning
- ½ teaspoon dried basil
- ½ teaspoon salt
- ¼ teaspoon black pepper
Cheese
- 1½ cups shredded mozzarella cheese
- 1 cup shredded cheddar cheese
- ½ cup grated Parmesan cheese
Optional Topping
- ½ cup seasoned breadcrumbs
- 1 tablespoon melted butter
Instructions
- Preheat oven to 375°F (190°C) and grease a 9×13-inch casserole dish.
- In a skillet over medium heat, cook onion for 3 minutes, then add garlic for 30 seconds. Add zucchini, squash, bell pepper, and corn; cook for 5 minutes until slightly softened, then remove from heat.
- In a large bowl, whisk together sour cream, eggs, Italian seasoning, basil, salt, and pepper until smooth.
- Add the cooked vegetables and tomatoes to the creamy mixture and stir until well combined.
- Transfer the mixture into the prepared baking dish and spread evenly.
- Top with mozzarella, cheddar, and Parmesan cheese. For a crispy topping, mix breadcrumbs with melted butter and sprinkle over the cheese.
- Bake uncovered for 35–40 minutes, or until golden, bubbly, and set.
- Let rest for 10 minutes before serving.
Notes
- Fresh & flavorful: Packed with zucchini, squash, corn, and bell peppers for a light summer taste.
- Creamy & cheesy: A rich blend of sour cream and three cheeses creates a comforting, golden topping.
- Easy make-ahead: Can be assembled in advance and baked fresh for convenient meal prep or gatherings.
- Prep Time: 20
- Cook Time: 40
- Category: Dinner
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 servings
- Calories: 280 calories
